>Quantum computer systems have been hailed as the future of computing, able to make calculations that could be very difficult or impossible on the “classical” computers that we use today.
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>But they are also prone to errors, that represent one of the major issues in the practical application of the technology.
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>Now Google researchers say they have found a way of building the technology so that it corrects those errors. The company says it is a breakthrough on a par with its announcement three years ago that it had reached “quantum supremacy”, and represents a milestone on the way to the functional use of quantum computers.
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>Researchers at Google Quantum AI said they have found a way to lower error rates as the size of the system increases, which they describe as being at a “break-even point”.
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>Dr Hartmut Neven, engineering director at Google Quantum AI, said while there are still challenges that lie ahead, he thinks that at this stage “we can confidently promise a commercial value” for quantum computers.